Answer:
89.16pounds
Explanation:
The equation that defines this problem is as follows
W=k/X^2
where
W=Weight
K=
proportionality constant
X=distance from the center of Earth
first we must find the constant of proportionality, with the first part of the problem
k=WX^2=131x3960^2=2054289600pounds x miles^2
then we use the equation to calculate the woman's weight with the new distance
W=2054289600/(4800)^2=89.16pounds
 
        
             
        
        
        
Because of its Sharp tip the needle is able to put the force on a very small area of the cloth, producing a large pressure sufficient enough to pierce the cloth being stitched and allow to stitch the thread in and pull it out. 
        
             
        
        
        
More convenient 
More commonly used
        
             
        
        
        
Answer:
hello the diagram relating to this question is attached below
a) angular accelerations : B1 = 180 rad/sec,  B2 = 1080 rad/sec
b) Force exerted on B2 at P = 39.2 N
Explanation:
Given data: 
 Co = 150 N-m , 
<u>a) Determine the angular accelerations of B1 and B2 when couple is applied</u>
at point P ; Co = I* ∝B2' 
                 150  = ( (2*0.5^2) / 3 ) * ∝B2 
∴ ∝B2' = 900 rad/sec 
hence angular acceleration of B2 = ∝B2' + ∝B1 = 900 + 180 = 1080 rad/sec
at point 0 ; Co = Inet * ∝B1
                   150 = [ (2*0.5^2) / 3  + (2*0.5^2) / 3  + (2*0.5^2) ] * ∝B1
∴ ∝B1 = 180 rad/sec
hence angular acceleration of B1 =  180 rad/sec
<u>b) Determine the force exerted on B2 at P</u>
T2 = mB1g + T1  -------- ( 1 )
where ; T1 = mB2g  ( at point p ) 
                  = 2 * 9.81 = 19.6 N
back to equation 1 
T2 = (2 * 9.8 ) + 19.6 = 39.2 N 
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Answer:
Motor converts Electrical energy into Mechanical Energy, while A generator converts Mechanical energy into Electrical energy. thankyou
Explanation: